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China Wire Thread Inserts Factory - Free Running & Self-Locking Solutions from Trusted Suppliers
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Free running and self-locking wire threaded inserts

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Self- locking Key locking threaded Insert
Key locking threaded Insert

Key locking threaded Insert
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Free running and self-locking wire threaded inserts (1).png
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China Wire Thread Inserts Factory - Free Running & Self-Locking Solutions from Trusted Suppliers

Introducing our high-quality Wire Thread Inserts, also known as helicoil inserts, manufactured in China by leading suppliers. These precision-formed, continuous-wire coils are designed to provide a strong, wear-resistant, and reusable threaded hole in softer or lower-strength materials. Our Wire Thread Inserts, produced in our state-of-the-art factory, ensure easy installation into tapped STI (Screw Thread Insert) holes. Their unique spring-like action firmly anchors the insert, creating a permanent, high-strength thread that accommodates standard bolts or screws while compensating for any pitch and flank-angle discrepancies. Enhance your projects with our reliable wire thread inserts, the perfect solution for durable threaded connections
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    Product Details

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    Standard

    18-8 (304) stainless steel – excellent corrosion resistance and general-purpose durability.

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    High-Corrosion

    316L stainless steel – superior pitting and chloride resistance for marine and chemical environments.

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    High-Temperature

    Inconel X-750 or A-286 – service up to 550 °C continuous, 815 °C intermittent.

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    Phosphor Bronze C51000

    non-magnetic, non-sparking, ideal for electrical and explosive-atmosphere applications.

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    Cadmium-plated carbon steel

    cost-effective for tooling and automotive repair kits.

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    All wires are work-hardened to 1400

    1600 MPa tensile strength, then precision-coiled and stress-relieved to provide a uniform, resilient thread.

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    Frequently Asked Questions

    QWhat are the properties of the Standard 18-8 (304) stainless steel inserts?

    The standard 18-8 (304) stainless steel inserts offer excellent corrosion resistance and general-purpose durability, making them suitable for most standard applications.

    QWhich material is recommended for marine or chemical environments?

    For marine and chemical environments, 316L stainless steel is highly recommended due to its superior pitting and chloride resistance.

    QWhat materials are available for high-temperature conditions?

    Inconel X-750 or A-286 materials are used for high-temperature applications, providing reliable service up to 550 °C continuously and 815 °C intermittently.

    QWhen should I use Phosphor Bronze C51000 inserts?

    Phosphor Bronze C51000 is ideal for electrical and explosive-atmosphere applications because it is non-magnetic and non-sparking.

    QWhat makes the cadmium-plated carbon steel option beneficial?

    Cadmium-plated carbon steel is a cost-effective solution specifically suited for tooling and automotive repair kits.

    QWhat is the tensile strength of the work-hardened wires?

    All wires are work-hardened to 1400–1600 MPa tensile strength, then precision-coiled and stress-relieved to ensure a uniform and resilient thread.